When they launch something that overtly flaunts their political affiliation like this, my first thought is: what will they omit?
Are we going to get 'curated' history now? Will everything they archive going forward come with a third-party annotation by a 'non partisan' fact checking group, or disappear into the ether? The latter option is far cheaper and less prong to scrutiny, after all.
One primary use I have for IA is to look for things that have been censored off their original platforms. Will I only be able to find those that align with their views going forward?